diff --git a/.custodian-brief.md b/.custodian-brief.md
index eee0f65..0a7858a 100644
--- a/.custodian-brief.md
+++ b/.custodian-brief.md
@@ -2,23 +2,23 @@
 # Custodian Brief — markitect-tool
 
 **Domain:** markitect  
-**Last synced:** 2026-05-03 20:40 UTC  
+**Last synced:** 2026-05-03 20:56 UTC  
 **State Hub:** http://127.0.0.1:8000 *(adjust if running on a remote machine)*
 
 ## Active Workstreams
 
-### markitect-tool Repository Foundation
-Progress: 5/5 done  |  workstream_id: `4d405d74-faec-440e-873e-692ff9ca96e7`
-
-### Practical Document Contract Framework
-Progress: 8/8 done  |  workstream_id: `558787e1-d287-46a5-9214-634e8b90a858`
-
-### Repo Integration: markitect-tool
-Progress: 3/4 done  |  workstream_id: `746bccfc-0ea2-4745-96fc-3abc34acc64f`
+### Runtime Context, Form, and Assessment Engines
+Progress: 0/8 done  |  workstream_id: `7918687e-2364-46b1-ab7e-65aa77cb8449`
 
 **Open tasks:**
-- ! Ingest SBOM  `f9ea77fb`
-  *(blocked: No implementation package manifest exists yet; SBOM ingestion follows MKTT-WP-0001-T005 after packaging is introduced.)*
+- · P5.1 - Define runtime context model  `e24e6238`
+- · P5.2 - Implement context resolver API and CLI input  `d180bb6d`
+- · P5.3 - Implement field prefill and validation runtime  `b954984a`
+- · P5.4 - Implement form state model  `cccdf868`
+- · P5.5 - Implement dynamic rules  `6e420e1e`
+- · P5.6 - Define LLM assessment execution interface  `24b22b3a`
+- · P5.7 - Add assessment runner and cache boundary  `b09b77e2`
+- … and 1 more open tasks
 
 ### Core Markdown Toolkit Implementation
 Progress: 4/8 done  |  workstream_id: `9fefb57d-985e-4125-8daf-03554844f45e`